| Ort | Kurz | |
|---|---|---|
| Cedar City, UT, USA | CDC | |
| Cedar Rapids, IA, USA | CID | Municipal |
| Chadron, NE, USA | CDR | |
| Chambery, France | CMF | Chambery Aix-Les-Bains |
| Chambord, Quebec, Canada | XCI | Chambord / Via Rail Service |
| Champaign, IL, USA | CMI | Univ Of Illinois-Willard Airport |
| Chandler, Quebec, Canada | XDL | Chandler / Via Rail Service |
| Changsha, China | CSX | |
| Chania, Crete Island, Greece | CHQ | Souda |
| Chapleau, Ontario, Canada | YLD | |
| Charleston, SC, USA | CHS | Charleston International Airport |
| Charleston, WV, USA | CRW | Yeager Airport |
| Charleville, Queensland, Australia | CTL | Charleville |
| Charlotte, NC, USA | CLT | Charlotte/Douglas Intl Airport |
| Charlottesville, VA, USA | CHO | Charlottesville/Albemarle |
| Charlottetown, Prince Edward Island/, Canada | YYG | Charlottetown |
| Chatham, Ontario, Canada | XCM | |
| Chattanooga, TN, USA | CHA | Cha Lovell Field |
| Cheju, South Korea | CJU | Cheju |
| Chemainus, British Columbia, Canada | XHS | Chemainus / Via Rail Service |
| Chengdu, China | CTU | |
| Cherbourg, France | CER | Maupertus |
| Cheyenne, WY, USA | CYS | Cheyenne Municipal Airport |
| Chiang Mai, Thailand | CNX | International |
| Chiang Rai, Thailand | CEI | Chiang Rai |
| Chibougamau, Quebec, Canada | YMT | Chibougamau |
| Chicago, IL, USA | CGX | Meigs Field |
| Chicago, IL, USA | CGX | Midway / Ohare / Meigs |
| Chicago, IL, USA | ORD | O'hare International Airport |
| Chicago, IL, USA | MDW | Midway |
| Chicago, IL, USA | ORD | O'hare International Airport |
| Chiclayo, Peru | CIX | Cornel Ruiz |
| Chico, CA, USA | CIC | Chico Municipal Air Terminal |
| Chignik, AK, USA | KCG | Fisheries |
| Chignik, AK, USA | KCL | Lagoon |
| Chihuahua, Chihuahua, Mexico | CUU | Genvillalobos |
| Chittagong, Bangladesh | CGP | Patenga |
| Christchurch, New Zealand | CHC | International |
| Christmas Island, Christmas Island | ||
| Churchill, Manitoba, Canada | YYQ | Churchill Airport |
| Ciego De Avila, Cuba | ||
| Cincinnati, OH, USA | CVG | Greater Cincinnati Intl Airport |
| Ciudad Bolivar, Venezuela | CBL | |
| Ciudad Del Carmen, Campeche, Mexico | CME | |
| Ciudad Juarez, Chihuahua, Mexico | CJS | International Abraham Gonzalez |
| Ciudad Obregon, Sonora, Mexico | CEN | |
| Clarksburg, WV, USA | CKB | Clarksburg-Benedum Airport |
| Cleveland, OH, USA | CLE | Hopkins International Airport |
| Clovis, NM, USA | CVN | |
| Cluj, Romania | CLJ | Cluj |
| Cobourg, Ontario, Canada | XGJ | Cobourg / Via Rail Service |
| Cochabamba, Bolivia | CBB | San Jose De La Banda |
| Cochin, India | COK | Naval Air Station |
| Coimbatore, India | CJB | Peelamedu |
| Colima, Colima, Mexico | CLQ | |
| College Station, TX, USA | CLL | |
| Cologne, Germany | QKL | Train Main Railroad Station |
| Cologne/Bonn, Germany | CGN | Koeln/Bonn |
| Colombo, Sri Lanka | CMB | Katunayake International |
| Colonia, Uruguay | CYR | |
| Colorado Springs, CO, USA | COS | Colorado Springs Municipal |
| Columbia, SC, USA | CAE | Columbia Sc Airport Metropolitan |
| Columbia, MO, USA | COU | Columbia Regional |
| Columbus, OH, USA | CMH | Port Columbus Intl Airport |
| Columbus, MS, USA | GTR | Golden |
| Columbus, GA, USA | CSG | Columbus Metropolitan / Fort Benning |
| Comodoro Rivadavia, Chubut, Argentina | CRD | Comodora Rivadavia |
| Comox, British Columbia, Canada | YQQ | Comox Civil Air Terminal |
| Conakry, Guinea | CKY | Conakry |
| Concepcion, Chile | CCP | Carriel Sur |
| Connaught, Ireland | NOC | Rep Of Ireland |
| Constanta, Romania | CND | Kogalniceanu |
| Cooma, New South Wales, Australia | OOM | |
| Copenhagen, Denmark | CPH | Copenhagen |
| Cordoba, Cordoba, Argentina | COR | Pajas Blancas |
| Cordova, AK, USA | CDV | |
| Cork, Ireland | ORK | Cork |
| Cornwall, Ontario, Canada | YCC | Regional |
| Corpus Christi, TX, USA | CRP | Corpus Christi International Airport |
| Cortez, CO, USA | CEZ | Montezuma County |
| Corumba, Mato Grosso Do Sul, Brazil | CMG | Corumba |
| Coteau, Quebec, Canada | XGK | Coteau / Via Rail Service |
| Cotonou, Benin | COO | Cotonou |
| Courtenay, British Columbia, Canada | YCA | |
| Cowra, New South Wales, Australia | CWT | Cowra |
| Coyhaique, Chile | GXQ | Teniente Vidal |
| Cozumel, Quintana Roo, Mexico | CZM | Aeropuerto Intl De Cozumel |
| Craig, AK, USA | CGA | |
| Cranbrook, British Columbia, Canada | YXC | Cranbrook Airport |
| Crescent City, CA, USA | CEC | Crescent City Municipal Airport |
| Crooked Island, Bahamas | CRI | |
| Cucuta, Colombia | CUC | Camilo Daza |
| Cuenca, Ecuador | CUE | Mariscal La Mar |
| Cuiaba, Mato Grosso, Brazil | CGB | |
| Culiacan, Sinaloa, Mexico | CUL | |
| Cumana, Venezuela | CUM | |
| Cumberland, MD, USA | CBE | Municipal |
| Curitiba, Parana, Brazil | CWB | Afonso Pena |
| Cuzco, Peru | CUZ | Tte Velazco Astete |
| Da Nang, Vietnam | DAD | Da Nang |
| Dakar, Senegal | DKR | Yoff |
| Dalaman, Turkey | DLM | Dalaman |
| Dalian, China | DLC | |
| Dallas, TX, USA | DAL | Love Field |
| Dallas/Ft Worth, TX, USA | DFW | Dallas Ft Worth International |
| Damascus, Syria | DAM | Damascus Intl |
| Dangriga, Belize | DGA | Dangriga |
| Danville, VA, USA | DAN | |
| Danville, IL, USA | DNV | Vermilion County Airport |
| Dar Es Salaam, Tanzania | DAR | International |
| Darwin, Northern Territory, Australia | DRW | |
| Dauphin, Manitoba, Canada | YDN | |
| Davao, Philippines | DVO | Mati |
| Dawson Creek, British Columbia, Canada | YDQ | |
| Dayton, OH, USA | DAY | James M Cox Dayton International |
| Daytona Beach, FL, USA | DAB | Daytona Beach Regional Airport |
| Deadmans Cay / Long Island, Bahamas | LGI | Deadmans Cay |
| Decatur, IL, USA | DEC | Decatur Municiple Airport |
| Deer Lake, Ontario, Canada | YVZ | |
| Deer Lake, Newfoundland, Canada | YDF | Deer Lake |
| Del Rio, TX, USA | DRT | |
| Delhi, India | DEL | Delhi International Airport |
| Dembidollo, Ethiopia | DEM | Dembidollo |
| Denham, Western Australia, Australia | DNM | |
| Denpasar Bali, Indonesia | DPS | Ngurah Rai |
| Denver, CO, USA | DEN | Denver International |
| Des Moines, IA, USA | DSM | |
| Destin, FL, USA | DSI | |
| Detroit, MI, USA | DTW | Detroit Metropolitan Airport |
| Devonport, Tasmania, Australia | DPO | Devonport |
| Dhahran, Saudi Arabia | DHA | Dhahran Intl |
| Dhaka, Bangladesh | DAC | Zia International Airport |
| Dibrugarh, India | DIB | Chabua |
| Dijon, France | DIJ | Longvic |
| Dipolog, Philippines | DPL | Dipolog |
| Diyarbakir, Turkey | DIY | Diyarbakia |
| Djibouti, Djibouti | JIB | Ambouli |
| Dodge City, KS, USA | DDC | Dodge City Municipal |
| Doha, Qatar | DOH | Doha |
| Dominica, Dominica | DCF | Cane Field |
| Dominica, Dominica | DOM | Melville Hal-Dom |
| Donetsk, Ukraine | DOK | Donetsk |
| Dortmund, Germany | DTM | Wickede |
| Dothan, AL, USA | DHN | Municipal |
| Douala, Cameroon | DLA | Douala |
| Dresden, Germany | DRS | Dresden |
| Drummondville, Quebec, Canada | XDM | |
| Dryden, Ontario, Canada | YHD | Dryden Airport |
| Du Bois, PA, USA | DUJ | Jefferson County |
| Dubai, United Arab Emirates | DXB | Dubai International Airport |